.nav_item_label {

  .nav_item_label_star_0 {
    opacity: 0;
  }

  .nav_item_label_star_1 {
    transition: all 500;
  }

  .nav_item_label_star_1:hover {
    transform: scale(1.5);
  }
  
  &:hover {
    .nav_item_label_star_0 {
      opacity: 0.4;
    }
  }
}